Tornado Risk in McPherson County, NE
How likely is a tornado in McPherson County, NE?
15 tornado tracks have crossed McPherson County since 1977 by NOAA's count, roughly one every 5.1 years - the Low band on this site's scale. That is the 40th percentile nationally for tornado frequency. Nebraska has 93 counties in this dataset; McPherson County ranks 86 of them by frequency.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in McPherson County in NOAA's 76-year database. Of its 15 recorded tracks, 12 were weak (EF0-1) and 2 significant (EF2-3).
Shelter and safe-room economics
Nebraska's Nebraska Emergency Management Agency's Residential Tornado Safe Room Program is the number that matters for a McPherson County homeowner: 75% of an approved shelter, cutting the typical $2,890-$13,280 national range to about $722.5-$3,320 net.
Power after the storm, not just shelter during it
A direct hit is not required for McPherson County to lose power - outbreak-wide outages across Nebraska regularly reach homes and businesses well outside the actual tracks. A battery bank covers that gap without a generator's fuel and venting needs.
What McPherson County's figure does not tell you
McPherson County's figure is county-wide, not address-specific. McPherson County covers about 859 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. McPherson County has about 376 residents.